I made a small container; it's only going to last a month or two, but it came out cute. I simply took a white plastic jar with a screw-on lid and had Anthony drill a hole in the top. It's a little bigger than your typical cold-cream jar.
I made a decorative label, covered it with contact paper, and stuck it on the jar. And then I took it to her--but I forgot to take a picture first. Oops.
I can post the image of the label; I guess you can just picture it wrapped around the jar.
Do you think your could give yourself shots every day? I really think it would be hard. I hope this makes it at least a tiny bit more cheerful process for her, because for every needle she disposes in this little jar, it will remind her that someone cares about her.